Back to Search
Start Over
A new strategy for designing multifunctional shape memory polymers with amine-containing polyurethanes.
- Source :
-
Journal of Materials Science . Oct2016, Vol. 51 Issue 19, p9131-9144. 14p. - Publication Year :
- 2016
-
Abstract
- In this study, a series of novel shape memory polyurethanes (SMPUs) containing tertiary amine groups are prepared by designing hexamethylene diisocyanate (HDI)-N-methyldiethanolamine (MDEA) as soft segments and HDI-BDO as hard segments. The structure and properties of the MDEA-based SMPUs are investigated using FT-IR, NMR, DSC, TGA, DMA, POM and AFM. The results demonstrate that the MDEA-based SMPU is composed of an amorphous soft phase and hard phase. The hard phase is amorphous below 20 wt% hard segment content (HSC), whereas the HDI-BDO segments form a semi-crystalline hard phase above 30 wt% HSC. This morphology exhibits good thermally induced SMEs with 100 % shape fixity and more than 80 % shape recovery. Moreover, the MDEA-based polyurethanes are expected to be further multifunctionalized for antibacterial activity, biocompatibility, multi-responsiveness and many other properties. This work provides a new strategy for designing multifunctional shape memory polymers with amine-containing polyurethanes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 51
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 116859737
- Full Text :
- https://doi.org/10.1007/s10853-016-0166-3